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Finding the Fourth Proportional to 404,000.20, 606,000.30 and 123,517.45

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Solution

The fourth proportional to 404,000.20, 606,000.30 and 123,517.45 is: 185,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,000.20 : 606,000.30 = 123,517.45 : x
  2. Step 2: Convert to fraction form
    404,000.20/606,000.30 = 123,517.45/x
  3. Step 3: Cross multiply
    404,000.20x = 606,000.30 × 123,517.45
  4. Step 4: Simplify right side
    404,000.20x = 74,851,611,755.24
  5. Step 5: Solve for x
    x = 74,851,611,755.24/404,000.20
  6. Step 6: Final answer
    x = 185,276.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.